@startuml
skinparam backgroundColor #EEEBDC
skinparam sequenceArrowColor DeepSkyBlue
skinparam sequenceParticipantBorderColor DeepSkyBlue
skinparam sequenceActorBorderColor DeepSkyBlue
skinparam sequenceLifeLineBorderColor blue
actor User
participant "First Class" as A
participant "Second Class" as B
participant "Last Class" as C

User -> A: DoWork
activate A

A -> B: << createRequest >>
activate B

B -> C: DoWork
activate C
C --> B: WorkDone
destroy C

B --> A: Request <u>Created</u>
deactivate B

A --> User: Done
deactivate A
@enduml